-23.22% is the change from 857 to 658
Calculation steps:
[( 658 - 857 ) ÷ 857] x 100 = -23.22%
Formula
Percentage change = [(658 - 857) / 857] x 100
Subtract the new number by the original number
658 - 857 = -199
-199 ÷ 857 = -0.2322053675612602
-0.2322053675612602 x 100 = -23.22%